#define _CRT_SECURE_NO_WARNINGS 1

#include <stdio.h>

int main() {
    char a, b;
    while (scanf("%c", &a) != EOF) {
        if (a == 'A' || a == 'a' || a == 'E' || a == 'e' || a == 'i' || a == 'I' || a == 'O' || a == 'o' || a == 'U' || a == 'u')
        {
            printf("Vowel\n");
            getchar();
        }
        else {
            printf("Consonant\n");
            getchar();
        }
    }
    return 0;
}